Door pivot



- DOOR PIVOT Filed Aug. '7, 1948 4 SheecS-Sheekl 2 I I Il 'z 2| 3 I I 2 5d 2d I I 6 l 9 3 I i e l :l I ed I lll l b '1 l ed x la I gwvQ/wto'b DAV/D'JEEAMAN July 22; 1952 Filed Aug. '7, 1948 Bld D. J. SEAMAN DOOR PIVOT 4 Sheets-Sheet 5 gmc/wm DAV/JjJgE/FAMAN D. J. SEAMAN July.22, 1952 DOOR PIVOT 4 Sheets-Sheet 4 Filed Aug. '7, 1948 DAV/D 1 /1 55A MAN as, @www fm Patented July 22, A1952 STATES PATENT' )I.""F'ICEv l v o 2,603,825

. ,y Doon rrvor v Davie; rephseaman, Battle creek.. Mich. Apnanonnugusf 7, 1948;. seriaiNc. iaauf 4i Claims. 1s'

This invention relates to doors andparticularly tothe mannerI of mounting doors. and the like for their required pivotal" ory swinging` movement with'frespect to their surrounding frame structureor the opening which theyare requiredto' close. The invention is alsoappli-cable to-pivotally mountable Window constructions and to; pivoted lids or aps for furniture and where the expression door is used herein this'isintended to include such alternative"constructions, in such instances Where the application of' thel features of the invention thereto is indicated as useful or desirable.

It is the objectv of the invention to provide a door structure and mounting' means therefor which possesses the following advantageous features:

1. The possihilityfof'mounting'theV door in position'inua rapidv and simple mannerl without the necessity' of afiixi-ng screwed hinges, as is usual, 2. The possi-bility; of adjusting the door, While in situ, to compensate for variations in shape or size thereof, or of the surrounding fra-mestructure (or both), on account of expansion or contraction changes, or for other reasons,

3. The possibility'of the door partakingx automatically of a closing movement when released from an opened position, and

4. The possibility'of the door being held auto'- matieally` in an ajarposition following open-ing vor closing movements of the door.

The above function-alv possibilities arel achieved in a practical and eiiicient manner, and with the reduction of maintenance 'requirements' to a. minimum, by the construction of a door and mounting means therefor.- as will now be described with .reference to the. accompanying drawings in which:

Fig. I is a fragmentary longitudinal section through the. tubular post provided. in accordance with the invention to receive a door: and' to. support the same forts pivotal motion with respect to the door frame struct-ure or opening. the. section being of the upper portion of theituhular post and being taken on a plane transverse to the plane of the door.. and showing: the position of the parts with the. door closed and the.l holding ajar mechanism inoperative,

Fig. II is an enlarged fragmentary section vthrough an intermediate portion.v of the tubular door post and showing the means employed to secure the door upon the post Winle permitting the readyadiustment of the door withA respect to the latter...

Fig.. IIIis-a plan View ci Fig. II..

(C12. 16--I5It' Fig. IV is a viewsimiiar to Fig; 1T,A out with the section taken. at right angles thereto. that isin a plane parallel with the plane` of the door;

lii'g.y V is a. fragmentarv-VV longitudinal section showingy the; lovver'emi of theptubuiar door post with itsV lower pivot andthe gra-Vitt' cani, action.

Fig. is a planl view off the'A lower socketpIa-te employed for the pivotal mounting of the lower end of the tubular door post,

' Fig. V'IIiis@v an underneath plan View ofthe upper. socket plate employed for pivotally'mounting the. upper end of the, tubular door post andshowing the cam depressions for giving the automatic aiarpositions. Y Y

VIII is an onderneathv` plan Viewk cil the bottom end of the.' tubular door post showing the gravity` action cam"r traciiemployed tok give the automatic -closing condition. y

Fig; IX is a fragmentary iverticalsecti'on of anotherginternrediate; portion'of'the tubular door post'. showing the anti-friction Vmeans employed to mountlthe door'with respecttto the' post.

Fig. X' is a longitudinali section similar to Fig. IV but showing they door post mechanism adjusted to provide for the automatic obtaining of a holding ajarconditionof the door following the vopening and closing. movements thereof, the mechanism being. shown. in the position corresponding toa partly opened condition oi' the door with the latter held aiar in suchposition..

XIis a generally schematic and part longitudinal sectional view' of; ad'oor construction and pivotal' mounting arrangement in accordance with the. invention. with intermediate. portions of the door and associated parts,v broken away for'convenienceof illustration,

Fig. XII isa fragmentary vertical section o1' a modiedv construction and arrangement .oi the bottom pivot. bearing. socket` for the doorr mount.- ngstructure,

Fig. XIII is a. side. elevational view'oi. this moditied. bearing socket;V u j A v y Fig-XIVv isY aplanviewf oi Fig. XIII, and:

.Figfiv is a.-

Vview to- Figs-XII but of yet anotherk and probably preferred construction of bottom pivotsocket unit.` which dispenseswith the use eradicating bearing.. this iigure showing in `dotted linesi theV positioning. of'Y the door for mounting its pivot pin for engagement the socket 1 i Reierringtofthe drawingsv and` iirst. to Fig. XI,

there is shown` therein a portion of a door frame structurel I in. which adoor. `2 jisipivotaily mounted through. the medium. of. a tubular., and normally metal. post. Velement 3.-.. Thelattelt which; is.y yof inner race 20.

3 cylindrical form and preferably extends along the entire length (or depth) of the longitudinal edgeV portion 2a of the door, has a longitudinal slot 3a (Fig. III) through which the edge portion 2a of the door extends and is embraced by the divided longitudinal tube edges 3b'.

Pivotal mounting of door (Figs. I, IV, V, VI, X, XI)

The post 3 Yearries upper and lowerf pivot'V pins 4 and 5 respectively' engageable lin socket plates 4a. and 5a to provide for pivotal mounting of theV` door, so that the latter is able to partake of its?v4 required opening and closing swinging movements.

The upper pivot pin 4 is constituted -by the upper end portion of a plungerrod 6 centrally mounted within the upper portion of thetube 3 so as to be co-axial with the latter, and mounted for sliding movement with respect to transverse bearing blocksl I and 8 secured within the tube 3 in longitudinally space drelationship and lhaving axially aligned bores 'Icp and 8a respectively forthe passage` of theirod. vThe latterhas an enlarged portionav engage'able with theorie bore l,

1a, and acoil spring!) isprovided about the'poruticn ofthe rodwhich extends lbetween thetwo said blocks,one end 'ofl this spring bearing against a collar I9 formed betweenthe rod portions 6a and @and the other endvlvof thefspring bearing against the block 8: -The spring 9 serves, tourge .the rod as a wholetowards the upper end of the tube` 3 so that the pivot end 4l normally projects beyond this tube end to form the required pivot p:for thedupper end of .thedoon Such outward Ibiasing of the rod, however, islimited by the .enlarged lower endfportion'Sb of the rod contacting the underneath surface of Atlnx'a'bloc'k .y The rod portion 6b terminates .in a collar 6c" forming .be-

tween' it',y and the rod-portion' 6b,j an a'rmula'ry re- -cess 6d. Thepurpose'of this recess'isto enable an implemenhsuhfas a screwdriver'head I'I, as indicated'in dottedflin'es'in Fig'. I, to beii'nserted through an opening I2 inthe tube -I'l'and'-engaged in the recess,[vvl'iereby.to permit pressure Yto be appliedto the `rod so as to 'force the vsarnefdown- Awards against the pressure ofthe spring and thereby retract the end 4 of ltheV rod from vits pivot forming position with respect tothe socket plate 4a. 1

The lower pivot pin' is' conveniently consti-A tuted by a spigot projecting'downwardly from a block I3 Xedly' secured within the lowerend of The weight of the door structure Vis transmitted lby the tube 3 to avv xed cam follower pin 24', Ito

be described later.

y Downward movement of the rod V6 is limited by the 'stop pin I'I (FigsJI'and X) upstanding from'theblockl secured within the tube 3.

Both the upper pivot pin 4 and the lower pivot pini are engaged within bearings, indicatedgenerally at I9, and carried lupon the' respective socket plates. These bearings 'are formed'to pro-` vide a self-aligning characteristic. l Each bear- -ing is formed by an inner ring 20 of arcuate cross translational motion,- the innenring-' 2ll beingv `ciated structurer.. Y ;v vfl'lfle cam track has free to partake also of this translational motion and this with respect to the outer race ring, which latter is secured within a central opening in its corresponding socket plate. These bearings I9, therefore, are in the form of oating bearings and serve the useful purpose of facilitating the mounting of the door for its pivotal motion, since the arrangement permits the lower door pivot to be engaged in the bottom socket platewith the ido'o'r b'eingheldin anginclined position, followed by an inward movement" of the door structure at the top to position the retracted upper pivot pin 4 opposite the upper socket plate.

:To mount the door for its pivotal motion the bottom pivot pin 5 is nrst engaged within the central opening-in the inner race ring 20 of the fioatingbearing in the bottom socket plate 5a, and this while the door is held in an open position'with respect to the door frame structure. While so held, with the bottom pivot pin 5 engagedy in the lower bearing,.the door is capable of lbeing pushed inwardly at its upper end to engageA the upper lp ivot pin 4Awithin theinner race ring `2 0 ofthe floating bearing in the upper socket plate 4a, the upperlpivot pin 4 beingheld in its operativev position with respect to the bearing in rthe `,upper socket platenby the `action of the springt.

To release the door for removal from the door frame, itis merely necessary to depress the rod in the manner above described, whereupon the doorV post 3 is lfreev to be moved away from the socket plate 4 to bring the upper end of the post clear of the door frame structure and thereby to permit the door to be lifted bodily in order to free thebottompivot rlpinjii from its socket plate 5a. The' tubular'door post Sandits end mounting plates 4a and 5c also incorporate means by dwhich the door :is given either an automatic Aclosing action or is capable offbeng automatically rheld ajar atapredetermined `angular position 4with respect to the door opening.

Automatic closing notion-Figs. V, VIII and XI The automatic 'closingaction results from the an upstanding Ycam follower :prin 24 so disposed that the'said cam track'bears, upon the upper end o f this pin, the latterin fact servingywith thaanti-friction arrangement above described to support the vfull weightofthedoor and assoits :highest end at 23a and falls away gradually to itsy lower end 23h. That is to say, the end 23a of the cam track is nearer ftothe lower end of thetubular post 3 than the end: 23h, and the cam tracklsurface` is correspondingly inclined between-these two ends, with the Aend 23a merging intoariatlhorizontal surface..25 forming' part; ofthe underneath surface ofthe block I3.r x

I The constructionand arrangement issuch that with .the door" post mountedin position 4to per- -mit of .the dooriswinging movement andwith 5, tion ,orthe door postl isl capable of partakingy of telescopic movement. Upon the door being swung open, the cam track 23 ismoved uponthe camfollower pin 24 until, inthe fullyy open condition ofthe door', the said at surface 25` is brought vto' rest in engagement with the pin. In this condition, that isv in thel fully open condition ofthe door,'the latter is, in fact, held automaticallyopen but is capable of swinging automaticallyl into its" closed position after the door' has been pushed to move the surface 25 away from engagement with the cam follower pin and to bring the high end .23a of the annular cam track' opposite the pin. When this happens the doorwill automatically swung to its closed position due .to the resulting gravity action of the linclined annular cam trackV 23 sliding upon the pin 24.

If desired, or necessary; the cam track -end 2.31)l may ber formed with a shallow depression with which the pin 24 engagesl automatically to hold the door closed, thereby providing a selfla-tching condition.

As above'stated, in the closed position of the door, the lupper end ofv the tubular post' 3 is positioned for telescopic movement with respect to the upper socket plate 4a and will in fact be telescoped withrv respect to the socket 'plate .as the door is swung. open and the door is lifted due to the annular camy track being traversed with respect to the pin 24 from its low end 23h, corresponding. to the closed door condition, to its high end 23a and. beyond the latter onto the flat surface 25, the latter corresponding to the fully open condition of the door. This freedom of telescopic movement of the upper end'of' the tubular door Avpost 3 with respect to the upper socket plate 4d enables the door to be constructed with a minimum of clearance along its upper edge with respect to the upper transverse door frame member and' in fact permits substantially the entire upper edge 2b of the door to be brought almost flush with the correspondingY edge of the upper transverse member ofthe door frame structure, since the arrangement of the cam track 23 with respect to the cam follower pin 24 will be such that upward lifting of the door will only commence after the major portion of the upper transverse edge 2b of the door has been swung clear of the upper transverse rail" of the door frame structure. In practice, it is only necessary to chamfer or recess the inner portion of the upper transverse edge of the door immediately adjacent the tubular post 3 yto permit the required lifting action to take place.V Provision may be made for radial ad'- justment ofthe pin Zittol be possi-ble whereby the pin'isfadjustable transversely with respect to thecam track 23.

.. `Awomdtic holding afar condition (Figs..1, IV, VII, IX) Y The autoniatic'holding ajar condition results from thezformation of the upper socket plate 4a with a Vvseriesof' circumferentially spaced depressions 'andby' theprovision of a vertically reciprocable Vplunger rod 26 mounted within the upper end ofthe tubular post 3, the plunger rod 26` being co-axial with another rodv 2'!V and with a co-axialcoil spring 28a interposed as a flexible link 'between the two rods. The rod 26 has a sliding iit through a'bore 28 inthe block l and has a collarportion 26a' which limitsl the upward sliding movement ofy the rod. At its loWer end ythe' rod 26 isY formed with ay smaller diame- 6. ter shank portion 261)-A slidably; mountedk within thev open upper end'of a tube 29 fixed-between the blocks 8 and I3. The shoulder '3U formed between the sha-nk 26h andthe lower endoi the rod '26 serves vto limit the downward movement of the rod 26, as will be understood. j

Atl its upper end the rod 26 is formed with a rounded head portion 26e which is located opposite the said series of' depressions in the underneath surface of the'upper socket plate 4a. These depressions are disposed-upon an arc, as seen in Fig. VII, and correspond in number and angular positionto the number of ajar positions required and the' required angle yat'which such ajar positions should occur.- In Athe particular example illustrated three such depressions arevprovided and indicated at 3|, 3| a and 3| bf. These depressions are of varying depths to conform with the lifting movement of the tubular post 3, as will be hereinafter mentioned. The lower rod 21 extends by its upper end through the open lower end of the fixed tube 29 and the rod '21 at its lower end is formed with an abutment 21a, which abutment, by the action of a coil spring 32, surrounding the rod 2 1, is maintained in frictiontight engagement with a cam 33 iiXed upon a rotary transverse spindle 34 mounted within the tubular post 3 and carrying' on theA outside of the latter a handle 35 by which the spindle is capable of being oscillated to cause either the high or the low part of the cam to be brought to bear against the abutment 21a. The coil spring 32 bears at its upper end against the block I8 and at its lower end against the abutment 21a.. This spring serves constantly to urge the abutment 21a into close friction-tight engagement with the cam 33.

In Fig. Ithe cam 33 is shown with its lower part in contact with the abutment 21a'. In this condition the spring 32is extended and the rod 21,' coil spring 280,' and rod '26 take up a correspondingly lowered position, in which the upper rod end 26o is spaced clear of the underneath surface of the upper socket plate 4a. In this condition of these parts, therefore, the rod end 26e has no camming action with respect to the recesses 3|, 3 lai: and 3 lb and the door, therefore, is free to be opened and closed without the obtaining of the ajar condi,- tion referred to but with the obtaining of the automatic closing condition, resulting from the engagement of the follower pin 24 with thearcuate inclined cam track 23' as above described'.

In Fig. X the cam 331is shown adjusted into its alternative position in which the high part of the cam is in contact with the abutment 21a. In this condition the. spring 32 is compressed and the rod 26 is lifted'with the spring 28un and rod 21. to cause the upper rod end 26C' to be held in 'rm friction-tight engagement with the' underneath surface of 'the upper socket plate 4d. With these parts thus adjusted', opening'and closing Azl'iovements of the door will cause the endl 26e of the rod 26 to cam over the underneath surface Vof the upper socket plate 4a, against the action of the coilv spring 28a, with the result that this rod end, by the Aaction oi' the coil spring 28a, will snap into theY recesses 3|, 31a and 3`lb4 as and when these are reached and this automatically with the' angular movements of the door, and hence of the tubular door vpost 3. The snapping of the tube end 26o into one or the other off the said depressions will automatically arrest the door in the angular positioncorresponding to such depression and will thereby provide `the required automatic aj ar conditicn until the rod end 26o is 7 cammed out of engagement with the corresponding depression byv deliberate further angular movement of the door. Y

. As above mentioned, the tubular door post 3 is lifted when the door is opened and the purpose of providing the depressions 3|, 31d. and 3H)V of varied depths is to compensate/for this lifting and'loweringmovement ofthe tubular door post and thereby to maintainY constant the eiective length of the combined rods 26 and 2,1 andthe intermediate spring 28a, when these are maintained in their lifted conditionwith the rod end 26e in one or the other of the depressions 3l, 31d

Vand 31h. The yelimination of this holding ajar adjustment means (Figs. II, III -cmd XI) The means for aiilxing thedoor panel 2 upon the tubular door post 3 and Yfor providing for the adjustment of the door to compensate for changes brought about.. by expansion orcontraction' of the door itself or of thedoor frame structure is shown in Figs. II, III and XI and involves essentiallyV the provision of nuts mounted'for limited floating movement with respect to the edge portion 2a of the door and of screw members cooperable Vwith said nuts and carried upon the tubular door postfor free swinging movement with respect thereto.

In the particular construction illustrated a pair of such nuts and associated screw members are shown and provided in longitudinally spaced relationship along theirrespective door and post parts and normally only two such nuts and screw members would be required. The construction and arrangement of each such nut and screw assembly is the same and accordinglyv only one Yneed be described in detail.

The nut 35 is mounted within a rectangular socket' 31 formed in the longitudinal edge 2b of the door 2 and lined by a metal liner socket 38 the inwardly set base of which has a central opening 39 affording a clear passageway for the inner plain end portion 40u' and the adjoining intermediate and screw-threaded portion 4017 of a screw member d0, the head 40e of which has a bevelled underneath annular surface 45d. The screw portions 45a and 4Gb are capable of being projected freely into a bore 4| formed in the door from the edge 2b thereof and the socket 31, at this edge, is closed by'avcover plate 42 except for an opening 43 in this plate, with which opening the plain' outer portion of the screw 4U has Door axing and a sliding t as is shown in Fig. II.

The screw Vlili is retained upon the interior of the tubular door post 3 by its engagement, at its -head end, with an enlargedopening All in the base wall 45df0f a double U-plate 45 the-'shorter limbs 45h of the Us of which terminate in spaced ment with the slot de in the screwhead 46c. A

coil spring 41 is mountedabout the screw portion 40d with one endof the spring bearing against 8 the plate 42 and the opposite spring end bearing against the inside of the base wall 45d of the double iU -platel 4 5;

The socket 31 affordsv an all round clearance for the nut 35,v which laccordingly has limited iioating movement within the socket but is capable of beingt drawn tightly against the cover plate@ when the screw 40 is tightened. as shown in Fig. II. Prior to such tightening, however, the nut 35 is permitted to partake of such floating movement, while the screw 4D is also free to swivel by its bevelled part 40d about the base of the plate d5, the latter being iixedly secured within the tubeby the screws 4B. Tightening of the nut takes place with compression of the spring 41. Accordingly, with the door assembled upon the door post Vwith the nuts 36 tightened adjustment of the door panel relatively to the post 3, either transversely inwards or outwardsv and either in its upper portion or its lower portion, or both, is immediately and readily possible simply by the insertion of a screwdriver through one or both of the openings 46 and appropriate actuation of the corresponding screws.

Undue strain on the screws 40 is prevented by the existence of the angle plate lll and the antifriction ball l5, the former being secured to the door edge, as shown, with its transverse arm Illa supportedupon the anti-friction member I5, the latter being provided upon a block I5 secured to the door tube 3.

Alternative und preferred pivotal mountings of lower end of door (Figs. XII, XIII, XIV Iand These .alternative mounting sockets are preferred as they possess the advantages that the entrance to the' socket is located substantially above floor level and that the socket is capable of being secured to the door frame stile. Thus ingress of soapsuds and extraneous matter or dirt normally encountered at floor level, as in washing or cleaning operations, and the clogging of the socket, is avoided while, the securing of the socket to the door stile obviatesthe necessity of cutting or penetrating the floor covering or carpet.

The modified socket as illustrated in Figs. XII, XIII and XIV consists of an elongated socket member 5i! having a vertical bore 5l closed at the bottom by a bottom plate 52 which rests upon the floor and forms one arm of a right angle piece, the other arm 53 of which is spaced from the socket member and extends vertically for the securing of the socket unit as a whole to the door frame stile` 5d, as by the securing screws 55, which can be countersunk into position.

The socket bore 5I is of enlarged diameter compared with the diameter of the bottom pivot pin 5 of the door tube 3 and at its upper end this bore 5I opens into a larger diameter bore portion 55a, forming a narrow circumferential ledge '56 upon which aV bearing washer 51 is supported.

' This washer has a clearance iit within the bore .portionr55a -by its external diameter being lessr than the diameter of the bore portion 55u, whereby to provide the clearance, indicated at 58 and to permit the washer to partake freely of limited bodily movement transversely of its bore portion 55a.

The central Washer aperture 59 approximates the diameter ofthe pivot pin 5, whereas the outer socket surface 5D is shaped to conform with the Iinternal shape of the lower tube Y portion 6l, whereby the latter can telescope vfreely over the :9: socket,;with an all roundclearance, as shownI ,in XII,- with the pivotrpinv 15 kengagedfin'the washer aperture 59 and the arcuate cam"'surf'ace 62 )engaged with the cam .follower pin 63,'all as, andior the purpose, abovedescribed. -g y The washer 57, therefore,k functions asa `iloating bearing to.V support the lower` pivotpin.5-for its required PVOalmotion Vbut vas this washer is located above'oor 'level 'the `ingress of dirt and other matter, which wouldtend to clog the entrance v4to the socket, tis avoided. Y- At thefsame time one or more drainage holes 64 can be provided at the bottom of the socket 50, 'in case water should gain access to its interior.

The cam follower pin 63 is secured to the socket to project vertically therefrom and is preferably so secured in position upon the socket as to be adjustable in a radial direction, whereby to permit the upper end of the follower to be adjusted with respect to the width of the cam track 62.

The modied bottom pivot socket unit illustrated in Fig. XV, in which the same parts as appear in the previous figures have been given the same reference numerals, has an upstanding stub post 68 containing an end vertical bore 69 open to the top of the stub post for the reception of the bottom door post pivot pin 5 and communieating with a co-axial enlarged counter-bore 10. The construction and arrangement is such that a door, with the tubular post 3 applied thereto, can be held at an angle, as indicated in dotted lines in Fig. XV to engage the pivot pin l5 in the opening 69 and in which position the top of the door is held clear of the top pivot socket. While so held the bottom end of the tubular door post can be telescoped over the stub post 68, it being noted that the corresponding door edge portion 'H (see Fig. VIII) is hollowed-out to permit this to be effected with the door angularly adjusted into position (the counter-bore assisting) until the top corner of the door has been brought into position for the engagement of the top pivot pin 4 in its socket, when the tubular door post 3 extends vertically with the stub post 68 enclosed in its bottom end portion.

By so proportioning the parts (the length of the stub post 68 being controlling) it is possible to leave the door hung upon the post 68 in the angular door mounting position as shown in dotted lines in Fig. XV until the top corner of the door is pushed inwards to engage the top pivot pin.

Double action To adapt the door mounting means for double action, i. e. to permit `the door to swing inwards or outwards, it is merely necessary to duplicate the arcuate cam track 23, as shown in dotted lines in Fig. VIII, and to provide the additional recesses 3l and 3Ia, as shown in dotted lines in Fig. VII, as will be understood. It will, however, be necessary to remove the handle 35 and to resort to other means to actuate the plunger rod 26 which will not impede the required double swinging door motion.

Electric lamp in door post (Fig. XI)

The tubular formation of the door mounting structure 3 renders it advantageously possibleA to install an electric lamp 64 within the tube and to so connect the lamp that it is automatically illuminated when the door is opened. This is rendered possible by the tube being tted with a suitable supporting structure for holding the lamp within the tube, and by the latter having Having thus described the-various features .of myfinventionand without limitation to fthefpre'- -cise detailsgpf constructionhand arrangement -cshownirl-the drawings (it-,being understoclthat :these 'mayl be ivariously modiiedto suit particu- 11er requirements. anderem-@e1ffonsideretww what I claim as novel and wish to claim isas follows:

l. A pivot socket unit for use to pivotally mount the lower end of a door structure having a vertically extending bottom pivot pin, comprising a socket member having an elongated vertical bore, a bearing member adapted to be supported in the upper portion of said bore for limited free transverse movement therein, said bearing member being formed to receive said pivot pin, and a bracket structure connected with said socket member and comprising a bottom plate adapted to .be supported upon the bottom of a door frame and a vertical arm adapted for the securing of the socket unit to the door fram stile.

2. Means for pivotally mounting a door on a door frame, said means comprising an elongated tubular post member adapted to be secured along one longitudinal edge of the door, pivot pins on said tubular post member, upper and lower socket members adapted to be secured to the door frame at the top and bottom of the door frame, respectively, said lower socket being elongated-compared with said upper socket, said pivot pins comprising an upper pivot pin and a lower pivot pin, said pins extending axially at opposite ends of said post member, spring means resiliently mounting said upper pivot pin upon said post member, said upper pivot pin being projectable beyond the upper end of the tubular post member by the action of said spring means into engagement with said upper socket or being retractable within the post member and from said socket against the action of the spring means, said bottom elongated socket being adapted to telescope into the lower end of said tubular post member with the said lower pivot pin engaged in said lower socket.

3. Pivot means as claimed in claim 2, said bottom socket including an enlarged upper bore portion, and said bottom pivot pin having a iioating t in said bore portion.

4. Pivot means as claimed in claim 2, said tubular post member housing axially spaced block members, said upper pivot pin being mounted upon said block members for axial movement, said spring means consisting of a coil spring encircling a portion of said pivot pin which extends between said block members, the ends of said coil spring bearing against said block means and said pivot pin having a bottom extension, said tubular post member having a sid-e opening adjacent said bottom extension, whereby access can .be had through said opening to said extension to retract the said pivo-t pin within the tubular post member against the action of said coil spring.

DAVID JOSEPH SEAMAN.

(References on following page) Y 11 v Number l REFERENCES CITED V2,134,259 The followingrreferences Vare of record in the 2201916 le of Vthis patent: 2,215,609 v UNITED STA'I'ES PATENTS 5 2249329 2,323,625 Number Name Date 2,430,942

336,355 Shaw Feb. 16, 1886 1,241,084 Bommer Sept. 25, 1917 2,095,866` Hallenbeck Oct. 12, 193'? 10 Number 2,148,778 Seeger Feb. 28,' 1939 10,029 2,148,787 ThOmaS FebfZB, 1939 7 Y V12 .Name Date *Seaman Dec. 19, 1939 Mussa June 4, 1940 Bingham Oct. 1, 1940 Rosenberg Ju1y'15, 1941 Seaman July V6, 1943 McGiff Nov. v 137, 1,947

FOREIGN VPATENTS Country Date Great Britain June 12,v 1891l 

